Officials in the tiny Gulf nation of Bahrain said Wednesday they busted an Iran-backed “terror” cell that was planning imminent attacks inside of the country. Bahrain is ruled by a Sunni monarchy but is populated with a Shiite majority.

Bahrain has ejected Iran’s Ambassador to Manama after uncovering an Iranian bomb-making factory in the tiny Gulf kingdom, officials said, who claimed that the facility was filled with members of the Iran Revolutionary Guards Corps (IRGC).